A fluorophore-labeled human cell. A fluorophore (or fluorochrome, similarly to a chromophore) is a fluorescent chemical compound that can re-emit light upon light excitation. Fluorophores typically contain several combined aromatic groups, or planar or cyclic molecules with several Ï bonds.
IN THIS TOPIC. Pregnancy symptoms are different for everyone, and can vary from month to month and even from pregnancy to pregnancy. Find out what to expect, from the earliest pregnancy symptoms to the wooziness of morning sickness to the aches and pains of your third trimester.
Morning sickness usually starts around week six of your pregnancy. But because every pregnancy is different, this can vary from woman to woman. If you have morning sickness, you may feel queasy when you wake up. But although it is called morning sickness, nausea can strike at any time of the day or night.